I’ve been on depo for a year

Always gotten my shot on time, I had sex and he did pull out.

I’ve been bleeding on and off for the whole month which isn’t common for me.

Usually after my shot I’ll have a 3/4 day period.

I got my shot last in october.

In November I had spotting. One time it was brown, once light pink, and once bright red. All 3 times it was just once episode (I would clean up and put on a liner. And the liner would stay clean all day).

Today I had brown discharge when wiping and then it turned to light pink as the day progressed.

Ivebeen cramping a lot. With occasional low back pain and nausea.

What’s the chance this is pregnancy